// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_CAST_SENDER_SOFTWARE_VIDEO_ENCODER_H_
#define MEDIA_CAST_SENDER_SOFTWARE_VIDEO_ENCODER_H_

#include <stdint.h>

#include "base/memory/ref_counted.h"
#include "media/cast/sender/sender_encoded_frame.h"

namespace base {
class TimeTicks;
}

namespace media {
class VideoFrame;
}

namespace media {
namespace cast {

    class SoftwareVideoEncoder {
    public:
        virtual ~SoftwareVideoEncoder() { }

        // Initialize the encoder before Encode() can be called. This method
        // must be called on the thread that Encode() is called.
        virtual void Initialize() = 0;

        // Encode a raw image (as a part of a video stream).
        virtual void Encode(const scoped_refptr<media::VideoFrame>& video_frame,
            const base::TimeTicks& reference_time,
            SenderEncodedFrame* encoded_frame)
            = 0;

        // Update the encoder with a new target bit rate.
        virtual void UpdateRates(uint32_t new_bitrate) = 0;

        // Set the next frame to be a key frame.
        virtual void GenerateKeyFrame() = 0;
    };

} // namespace cast
} // namespace media

#endif // MEDIA_CAST_SENDER_SOFTWARE_VIDEO_ENCODER_H_
